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In the Sky This Week

Weekly post on what you can see in the sky.

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In the Sky This Week – July 14, 2020

Sacred Space Astronomy avatarPosted on July 14, 2020 by Bob TrembleyJuly 14, 2020
This entry is part 1 of 185 in the series In the Sky This Week

Photos of comet C/2020 F3 NEOWISE have been all over the news recently, and they have been stunning! What a sight!☄️ Amazing timelapse shows Comet Neowise moving across the sky. pic.twitter.com/vBKyuDbJcZ — TheSpaceAcademy.org✨🔭 (@ThespaceAcad) July 14, 2020 A comet is visiting from the most distant parts of our solar system and making a once-in-a-lifetime visit to our twilight skies! Below are images of comet C/2020 F3 NEOWISE as seen by @ISS_Research. Learn more about the comet and how to watch it: https://t.co/HGlMtyCCFU pic.twitter.com/krG2yC1MpZ — NASA Asteroid Watch (@AsteroidWatch) July 8, 2020 I’ve seen several images of comet C/2020 F3 NEOWISE that appear to show the comet’s nucleus fragmenting! Looks like the core of #comet C/2020 F3 #NEOWISE is breaking up! Source: https://t.co/kDItxOC99C pic.twitter.com/kT5QtOpvL2 — AstroBalrog (@AstroBalrog) July 14, 2020 Comet #neowise shot at f10 with a monochrome CCD – looks like it may be breaking up – or it might be my mount issues pic.twitter.com/pQYPuQVPUv — Phil Michel (@m1che2) July … Continue reading →

Posted in Astronomy, Outreach | Tagged C/2020 F3 (NEOWISE), Comet, Jupiter, Mars, Moon, Saturn, Sun, Teegarden's Star, Venus | Leave a reply

In the Sky This Week – August 15, 2017

Sacred Space Astronomy avatarPosted on August 15, 2017 by Bob TrembleyAugust 15, 2017
This entry is part 2 of 185 in the series In the Sky This Week

Venus is a bit lower and Orion a bit higher in the eastern morning sky. Venus orbits closer to the Sun than Earth, and is racing ahead-of and away-from the Earth; the planet will vanish from view in mid-November as the Sun comes between it and the Earth. The waning crescent Moon appears thinner and closer to the horizon each morning in the eastern sky. Note: I used Stellarium’s new “Astronomical calculations” feature to generate the ephemeris for this image – I expect you’ll be seeing more of this. The Moon be in conjunction with the star Aldebaran on the Aug. 16th, appearing VERY close to each other, VERY early in the morning. Aldebaran is a orange giant star about 44 times the size of the Sun, located about 65 light years away. Aldebaran is positioned close to the ecliptic plane, and is frequently occulted by the Moon… just not this month. Jupiter is visible only for a short time … Continue reading →

Posted in Astronomy, Outreach | Tagged Aldebaran, Conjunction, Jupiter, Moon, Saturn | Leave a reply

In the Sky this Week – January 23, 2018

Sacred Space Astronomy avatarPosted on January 23, 2018 by Bob TrembleyJanuary 23, 2018
This entry is part 3 of 185 in the series In the Sky This Week

In the southern predawn sky, Mars and Jupiter continue to separate after their recent conjunction; Mars will slowly make its way southeast towards Saturn over the next several weeks. Saturn will get higher in the southeastern predawn sky with each passing morning. The Moon The Moon is a waxing crescent, visible in the southwestern sky at dusk, and setting around midnight.   The Moon will be at first-quarter on the 24th, and will be a waxing gibbous for the rest of the week, heading toward full on the 31st. The Moon will be a great observing target this week. On January 31st there will be a total lunar eclipse – this will be the first Blue Moon eclipse in 150 years! The Sun The Sun is spot-free, which was a shame last weekend – I set up my telescopes at ConFusion – a Science Fiction convention in the Metro-Detroit area. I’ve been bringing my telescopes to these conventions for several years now, and … Continue reading →

Posted in Astronomy, Outreach | Tagged Conjunction, Convention, Coronal Hole, Jupiter, Mars, Moon, Sun, Sunspot, Telescope | 3 Replies

In the Sky this Week – January 16, 2018

Sacred Space Astronomy avatarPosted on January 16, 2018 by Bob TrembleyJanuary 16, 2018
This entry is part 4 of 185 in the series In the Sky This Week

The megaconjunction of Mars-Jupiter and Mercury-Saturn in the southeastern predawn sky comes to an end as Mercury pulls away from Saturn, disappearing into the light of the dawn. Jupiter and Mars slowly separate over the coming weeks; Mars getting lower in the sky as Jupiter journeys southward. The new Moon will be on the Jan. 17th. A waxing crescent Moon will be in the west-southwestern skies this weekend at dusk, setting a few hours after sunset. I’m really hoping the sky is clear this weekend as I’ll be attending ConFusion – a Science Fiction convention, and bringing my telescopes; I always seem to get blamed for “bringing cloudy skies with my telescope…” The Sun The Sun has 1 medium-sized sunspot, with some coronal loops associated with it. The Sun’s corona, seen here in extreme ultraviolet, reveals a weak northern coronal hole, and a small hole at the southern pole. There is, however, a mid-latitude coronal hole that pouring the solar wind out right at … Continue reading →

Posted in Astronomy, Outreach | Tagged Conjunction, Coronal Hole, Jupiter, Mars, Mercury, Moon, Sun, Sunspot | Leave a reply

In the Sky This Week – June 27, 2017

Sacred Space Astronomy avatarPosted on June 27, 2017 by Bob TrembleyJuly 7, 2017
This entry is part 5 of 185 in the series In the Sky This Week

Venus remains high in the eastern morning sky, the Pleiades star cluster appears between Venus and the star Capella. The Moon is a waxing crescent, appearing in the west after sunset. Jupiter is high in the southwest, and Saturn is low in the southeast sky after sunset. There will be a conjunction of the Moon, Jupiter and the star Spica on the evenings of June 30th and July 1st. Here is the current positions of the planets in the solar system:

Continue reading →
Posted in Astronomy, Outreach | Tagged Conjunction, Jupiter, Moon, Pleiades, Saturn | Leave a reply

In the Sky this Week – January 9, 2018

Sacred Space Astronomy avatarPosted on January 9, 2018 by Bob TrembleyJanuary 9, 2018
This entry is part 6 of 185 in the series In the Sky This Week

Jupiter and Mars continue their predawn dance in the southeastern sky, getting a bit farther away from each other with each morning. Saturn joins Mercury very low in the southeastern sky just before sunrise. Slowly over this week, Saturn and Mercury will swap positions in a dance of their own. A waning crescent Moon joins Jupiter and Mars’ predawn dance on the 11th, appearing only 3°39′ away from Mars. The Moon will appear lower in the southeastern sky, getting closer to Mercury and Saturn each morning; it may be too thin and low in the sky to be seen on the 15th. On the 13th, Mercury and Saturn will be separated by only 0°45′ of arc! And they will joined by the waning crescent Moon, and the red giant star Antares adds flavor to what must certainly be considered a multi-day “Megaconjunction” with the Sun, Saturn, Mercury, the Moon, Mars, and Jupiter all in the southeastern sky at the same time. The … Continue reading →

Posted in Astronomy, Outreach | Tagged Conjunction, Coronal Hole, Jupiter, Mars, Mercury, Moon, Sun, Sunspot | Leave a reply

In the Sky This Week – July 4, 2017

Sacred Space Astronomy avatarPosted on July 4, 2017 by Bob TrembleyJuly 7, 2017
This entry is part 7 of 185 in the series In the Sky This Week

Venus is the bright morning star in the eastern sky, attended by the Pleiades star cluster, and the bright star Capella to the northeast. The southern sky is adorned with several jewels this week: the Moon appears high in the southern sky before sunset as a waxing gibbous – a few days past first quarter. Jupiter and Saturn are both visible, as are the bright stars Antares and Spica. The full Moon will be on July 9th. The bright star Altair (featured in the classic SF film Forbidden Planet) rises in the east followed by the constellation Sagittarius to the southeast. Sagittarius is recognizable by “The Teapot” asterism low on the horizon. Sagittarius has several interesting deep sky objects to observe using telescopes; something cool you can do with the public during nighttime observing sessions is point to the Teapot’s spout and say “that’s where center of our Milky Way galaxy is!” Before dawn, the constellation Hercules sets in the west, and “The … Continue reading →

Posted in Astronomy, Outreach | Tagged Conjunction, Jupiter, Moon, Saturn | Leave a reply

In the Sky This Week – June 22, 2017

Sacred Space Astronomy avatarPosted on June 21, 2017 by Bob TrembleyJuly 7, 2017
This entry is part 8 of 185 in the series In the Sky This Week

The planet Venus appears high in the eastern morning sky; the bright star Capella, to the northwest, is the last star to fade with the oncoming dawn. The waning crescent Moon will vanish amid the morning haze to the east, to reappear in the west as a waxing crescent after dusk on June 25th. The Summer Triangle is an asterism formed from the three stars Altair, Deneb, and Vega, the brightest stars in the three constellations of Aquila, Cygnus, and Lyra. They can be see in the eastern sky before midnight. Jupiter is high in the southwestern sky after dusk, and sets in the west around 1:30 AM. Saturn appears high in the southeastern sky after dusk, is at its highest around midnight, and sets in the southwest just before dawn. Directly overhead, the Milky Way flows through the constellations Cygnus and Aquila (if you live in a city – trust me, it’s really there… drive out of the city … Continue reading →

Posted in Astronomy, Outreach | Tagged Cygnus, Hercules, Jupiter, Lyra, M13, M57, Saturn, Summer Triangle, Vega | Leave a reply

In the Sky this Week- December 5, 2017

Sacred Space Astronomy avatarPosted on December 5, 2017 by Bob TrembleyDecember 5, 2017
This entry is part 9 of 185 in the series In the Sky This Week

In the eastern predawn sky, Mars continues its weeks-long conjunction with the star Spica, and Jupiter tags along, lower towards the horizon. Orion sets in the west at 6:00 AM; the waning gibbous Moon, one day after full, sets around 9:00 AM. Both the Moon and Orion rise in the east around 10 PM. The Moon will be at third quarter on the 10th. From the southern hemisphere, the Moon and Orion’s orientation appear flipped to what residents in the northern hemisphere see. Mercury and Saturn are almost completely lost in the glare of the setting Sun to the southwest. From Perth, the light of the dawn starts shortly after 4:00 AM, with sunrise around 5:00 AM. The sky to the southeast before sunrise from Perth is spectacular! From the U.S., sunrise is shortly before 8:00 AM, and sunset is shortly after 4:30 PM. The constellations Ursa Major (including the Big Dipper asterism) and Leo are almost directly overhead in the predawn … Continue reading →

Posted in Astronomy, Outreach | Tagged Coronal Hole, Jupiter, Mars, Mercury, Moon, Saturn | Leave a reply

In the Sky this Week- October 10, 2017

Sacred Space Astronomy avatarPosted on October 10, 2017 by Bob TrembleyOctober 10, 2017
This entry is part 10 of 185 in the series In the Sky This Week

The waning gibbous Moon is high in the southern sky before dawn; The Moon will be at third quarter on the 12th, traveling eastward and a bit lower each morning, it will be a waning crescent from the 13th through the 19th. The Moon will occult the star Regulus before sunrise on Oct. 15th. For a map and timing of the occultation for your location, click this link. Venus and Mars continue to appear close together, low in the eastern predawn sky. The Moon will appear very close to Mars on the morning of Oct. 17th. On October 14th, asteroid 2012 TC14 will pass by the Earth at 0.13 Lunar Distances – that’s WELL inside Earth’s geosynchronous satellite ring; the asteroid is estimated to be 8-26 meters in diameter. Earth’s gravity will bend the orbit of the asteroid as it passes by. There are currently no sunspots visible from Earth, but the coronal hole that has been hanging around for … Continue reading →

Posted in Astronomy, Outreach | Tagged Conjunction, Corona, Coronal Island, Moon, Occultation, Regulus, Saturn, Uranus | Leave a reply

In the Sky this Week – January 3, 2018

Sacred Space Astronomy avatarPosted on January 3, 2018 by Bob TrembleyJanuary 3, 2018
This entry is part 11 of 185 in the series In the Sky This Week

Mercury rises shortly before the dawn, appearing low in the southeastern sky. Jupiter and Mars are only 1° 38′ apart – practically on top of each other! 1° is about the width of your little finger held at arm’s length. Compare the image above with the solar system image at the bottom of this post to see how Jupiter and Mars line up in relation to the Earth. A waning gibbous Moon, one day past full sets in the west with the dawn. After sunset in the east, Taurus and the Pleiades are already high in the sky, and Orion is just above the horizon. Orion is visible most of the night, setting in the west around 4:00 AM. The Sun The Sun has no spots, and has been completely devoid of sunspots for 6 days now. The solar wind speed is 377 km/sec, with a density of 6 protons/cm3 – lower speeds, and slightly more dense than in my last In the Sky … Continue reading →

Posted in Astronomy, Outreach | Tagged Jupiter, Mars, Mercury, Moon, Sun, Sunspot | Leave a reply

In the Sky this Week- December 19, 2017

Sacred Space Astronomy avatarPosted on December 19, 2017 by Bob TrembleyDecember 19, 2017
This entry is part 12 of 185 in the series In the Sky This Week

Mercury rises with the dawn, low in the southeastern sky. Jupiter, Mars and the star Spica are aligned almost in a straight line in the predawn sky. A thin waxing crescent Moon appears at dusk in the southwest on 21st. The Moon with be at first quarter on Christmas; all week long would be a great time to set up your telescope and show the Moon to family, friends and neighbors during this holiday season! The Sun One tiny little sunspot, and that’s all folks! Click the image below to see a larger version at the Solar Dynamics Observatory site, then scroll way over to the upper-left to find the sunspot. If you click the image above, in the close-up view you will notice grainy … somethings on the Sun – these are called granules. “Granules are small (about 1000 km across) cellular features that cover the entire Sun except for those areas covered by sunspots. These features are the tops of … Continue reading →

Posted in Astronomy, Outreach | Tagged Active Region, Christmas, Jupiter, Mars, Mercury, Moon, Spica, Sunspot | Leave a reply

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Specola Guestbook | December 26, 1934: Giuseppe Bugatto

Sacred Space Astronomy avatarPosted on March 7, 2021 by Robert MackeFebruary 1, 2021
This entry is part 84 of 84 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, Nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from December 26, 1934, when Giuseppe Bugatto made a visit. Next to his … Continue reading…

Posted in History | Tagged Bugatto, L'Osservatore Romano, Specola Guestbook, Vatican Observatory | Leave a reply

Misinformative Books from Surprising Places

Sacred Space Astronomy avatarPosted on March 6, 2021 by Christopher M. GraneyFebruary 22, 2021

Misinformation.  It is a big topic these days, and a big problem.  And when the topic is astronomy and the Copernican Revolution, misinformation abounds, even in the relatively durable, more controlled medium of books.  “Caveat lector!” applies to this topic—“Let the reader beware!” Two recently-published books are especially disappointing in … Continue reading…

Posted in Astronomy, History | 3 Replies

Solar Sketching in h-alpha – Prominences dancing on the limb

Sacred Space Astronomy avatarPosted on March 5, 2021 by Deirdre KelleghanMarch 5, 2021

                                Astronomical Sketching Astronomical sketching is not just about drawing pictures. It is about learning. This kind of sketching is about observing the subject very closely at the far end of your telescope. Sketching at … Continue reading…

Posted in Astronomy, Education | Tagged animation, Filaments, gifs, h-alpha, Movement, Proms, PST, Solar Sketching | Leave a reply

Finding the Unexpected

Sacred Space Astronomy avatarPosted on March 4, 2021 by Br. Guy ConsolmagnoMarch 4, 2021
This entry is part 61 of 61 in the series And Then I Wrote

And then I wrote… in 2014, the magazine US Catholic solicited a couple of articles about science fiction from me. One of them ran in 2014 under the title “Get Lost In Space” and the other they included only on their web site. I reprint both of them here… along … Continue reading…

Posted in And Then I Wrote, Popular Culture | Tagged Science fiction | Leave a reply

From the V.O. Faith and Science Pages: The Road of Science and the Ways to God

Sacred Space Astronomy avatarPosted on March 3, 2021 by Faith and ScienceJanuary 29, 2021

Today’s featured entry from the Vatican Observatory Faith and Science pages: “The Road of Science and the Ways to God” (click here for it) A book by Stanley L. Jaki: “Originally presented as the Gifford Lectures for 1975 and 1976 at the University of Edinburgh, this challenging work illuminates the … Continue reading…

Posted in From the V.O. Faith and Science Pages | Leave a reply

In the Sky this Week – March 2, 2021

Sacred Space Astronomy avatarPosted on March 2, 2021 by Bob TrembleyMarch 2, 2021
This entry is part 185 of 185 in the series In the Sky This Week

This week, the Moon appears in the predawn sky, Mars is in a close conjunction with the Pleiades star cluster, and the planets Mercury, Jupiter and Saturn appear low above the horizon before dawn; Mercury and Jupiter appear in a very close conjunction – less than 1 degree apart, as they swap positions over the course of several days.

Continue reading...
Posted in Astronomy, Outreach | Tagged Conjunction, Eagle Nebula, Jupiter, Mars, Mercury, Moon, Pleiades, Saturn, Sun, The Pillars of Creation | Leave a reply
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Recent Comments

  • Christopher M. Graney March 6, 2021 at 3:42 pm on Misinformative Books from Surprising PlacesThanks, Joel. And Ed, what is the source that said Galileo confirmed Copernicus? Can you give a link?
  • Joel Hopko March 6, 2021 at 11:54 am on Misinformative Books from Surprising PlacesProfessor Graney -- Ironic but perhaps understandable that the painstaking technical work of centuries should be reduced to a melodramatic contest of intrenched religious bigots bent on obscuring the truth versus "enlightened" clear seeing individuals heroically battling the establishment. After all, melodrama consistent outsells even the best technical literature. Still...
  • Ed Yepez March 6, 2021 at 7:45 am on Misinformative Books from Surprising PlacesA quick "google" come up with Galileo confirming Copernicus. If I understand correctly, they made observations that ageeed with heliocentrism, but "Confirmation" came later (Newton?)
  • Fr. James Kurzynski March 2, 2021 at 8:20 pm on Georges Lemaitre – Father of the “Big Bang”You're very welcome Fr. Madley! Thank you!
  • Fr. Jeffrey Madley March 2, 2021 at 11:57 am on Georges Lemaitre – Father of the “Big Bang”Excellent article about Msgr. Lemaitre, Fr. Jim. Nice to know people in the Church have contributed to science.
  • Fr. Bruce Wilkinson February 23, 2021 at 4:05 pm on In the Sky This Week – February 23, 2021I completely agree with you that putting cameras on EVERY space mission - without question and without fail. The ability to see the accomplishments of the various robotic missions have inspired future generations to want to become part of the space exploration crowd
  • Ed Yepez February 20, 2021 at 7:51 am on The Sun Rules!Excellent! Thank you very much for presenting this in such an understandable form. Also let me appreciate the math.(a lot of which I had forgotten) With Kepler, how you can make the correct observations, yet still come to an erroneous conclusion? But the observations remain correct, even useful for further...
  • Bob Trembley February 19, 2021 at 5:16 am on In the Sky This Week – February 16, 2021I joined a NASA Night Sky Network Zoom Watch Party - it was pretty cool! When I joined, an engineer was talking about his work on the helicopter - those wings are HUGE! I watched the the landing with my in-laws; it was cool to see the same image up...
  • Richard Hill February 19, 2021 at 12:54 am on Skyward by David Levy: February 2021Very nice meteor photo! Reminds me of one Geminid I saw as I was walking to night lunch on Kitt Peak. It passed right through Orion. Burned a memory in my brain.
  • Benjamin Goodison February 18, 2021 at 5:26 pm on In the Sky This Week – February 16, 2021... and three days later, Perseverance finally touched down successfully and is snapping its first images!I'm sure there were more than a few spontaneous prayers in the NASA control room in those last few minutes... there certainly were at my end :) Really looking forward to the wealth of new...
  • Bob Trembley February 16, 2021 at 8:31 am on In the Sky This Week – February 16, 2021Oh my goodness! Thank you SO MUCH for the kind replies!
  • Joseph O'Donnell February 16, 2021 at 8:00 am on In the Sky This Week – February 16, 2021Thank you for this. Always so helpful and enlightening.
  • Stan Sienkiewicz February 16, 2021 at 7:47 am on In the Sky This Week – February 16, 2021Bob, another great post. Wonderful way to start the day. Thanks for putting in the time to create these posts. Educational, beautiful, and awe inspiring. I really appreciate seeing these each week. Thank you, Stan
  • Fr. James Kurzynski February 12, 2021 at 10:40 pm on Space Exploration As An Act Of Interfaith Dialogue.Thanks Joel! I greatly appreciate your insight and encouragement!
  • Fr. James Kurzynski February 10, 2021 at 10:46 am on Polar Vortex, Snowy Owls, Puffins, and Answering the Question: Fr. James, If Global Warming Is Real, Why Am I So Cold?Thanks for you response! My apologies if it came across that Wisconsin was the southernmost Snowy Owls travel. That was not my intent. In my prep, I saw articles of sightings as south as Texas. The point being that some birds go south, others don't, and its a bit of...
  • Jim Cook February 10, 2021 at 8:05 am on Polar Vortex, Snowy Owls, Puffins, and Answering the Question: Fr. James, If Global Warming Is Real, Why Am I So Cold?Wisconsin is actually NOT very far south to find Snowy Owls in winter, as you can see from its eBird range map: https://ebird.org/science/status-and-trends/snoowl1/range-map I've subscribed to eBird's Snowy Owl reports list for almost 10 years now and while some years have seen more reports of sightings than others, they typically...
  • Fr. Timothy Sauppé February 8, 2021 at 8:38 am on A telescope made by an Angel…Br. Guy: This would make a great beginning to your opening address to the Solar Eclipse Retreat in 2024 for Bishops/Priests. I am going to save this. Fr. Timothy Sauppé
  • Richard Saam February 7, 2021 at 10:20 am on JWST update – Hexagons in SpaceI want to make an additional point on hexagons: In the realm of crystallography as described in solid state physics, there is an equivalence between real(energy) and reciprocal(momentum) hexagonal space. This was mathematically presented in Charles Kittel's (recently deceased) text "Introduction to Solid State Physics". And then something to ponder:...
  • Joel Hopko February 1, 2021 at 11:23 am on Space Exploration As An Act Of Interfaith Dialogue.Fr. Kurzynski -- I too was very moved by the Emirates and the other national efforts (Japanese, Indian etc.) Like you I found in them an expression of the human spirit and even the religious wellsprings that can inspire us toward a shared destiny beyond our fear and confusion. Thanks...
  • Richard Saam February 1, 2021 at 10:33 am on JWST update – Hexagons in SpaceAdding to Fernando's comments 'hexagons are pretty much everywhere in the universe': It can be argued that universal space time can be expressed as oscillating virtual hexagonal (~50 cm, ~8 hr) lattice units conforming to the conservation of energy and momentum and the universe vacuum energy density. There is some...

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